A crop irrigation method and drip irrigation system used in the method

Abstract

The invention discloses a crop irrigation method. The method is characterized by comprising the following steps: laying a drip irrigation belt, wherein the drip irrigation belt is laid in fields where crops are planted, and the laid drip irrigation belt at least comprises branch pipes and tubular billets; arranging a head pivot which at least comprises a fertilizing device, a pressure changing device and a filtering device; connecting the drip irrigation belt with the head pivot; opening the head pivot for drip irrigation, adjusting the water supply pressure of the pressure changing device, adjusting the pressure to be high when more water is needed in unit time, and adjusting the pressure to be low when less water is needed in unit time. Compared with the prior art, the crop irrigation method has the advantages of being capable of reducing cost and controlling irrigation time.

Description

technical field [0001] The invention relates to a crop irrigation method and a drip irrigation system used in the method. Background technique [0002] Drip irrigation is by far one of the most effective water-saving irrigation techniques for farmland irrigation. [0003] In recent years, with the widespread application of drip irrigation tapes, drip irrigation technology has been widely used. [0004] At present, drip irrigation is dominated by under-mulch drip irrigation. Under-mulch drip irrigation, as the name suggests, is the application of drip irrigation technology under the mulch, that is, a layer of mulch is covered on the drip irrigation belt or drip irrigation capillary. This technology is to supply water through a controllable pipeline system. After the pressurized water is filtered through the filter facility, it is fully fused with the water-soluble fertilizer to form a fertilizer solution, which enters the water supply main pipe ~ branch pipe ~ capillary pip...

AI Technical Summary

Problems solved by technology

The disadvantages of this irrigation method are: the water output per unit time is constant, and the different growth stages of crops have different requirements for water and fertilizer. During the drip irrigation process, it is difficult to control the dripping time; , long irrigation time

In actual production and life, there is also a difference in the price of water and electricity charges during the day and night, and during the growth stage of crops that require a lot of water during the day and night, the water demand is large, and irrigation at night alone may not be able to meet the water demand of crops, and may also be adjusted during the day. If the crops are irrigated, this will increase unnecessary expenses. If the irrigation time can be controlled in the evening when the water and electricity charges are cheaper, this will inevitably reduce production costs and save additional expenses such as water and electricity charges.

Images